package com.geo.keyword.service;

import com.geo.keyword.dto.KeywordCreateRequest;
import com.geo.keyword.dto.KeywordListResponse;
import com.geo.keyword.entity.Keyword;
import com.geo.keyword.mapper.KeywordMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;

/**
 * 关键词服务类
 */
@Service
public class KeywordService {
    
    @Autowired
    private KeywordMapper keywordMapper;
    
    /**
     * 创建关键词
     */
    public Keyword createKeyword(KeywordCreateRequest request, String userId) {
        Keyword keyword = new Keyword();
        keyword.setId(UUID.randomUUID().toString());
        keyword.setKeywordText(request.getKeyword());
        keyword.setIndustryCategory(request.getCategory());
        keyword.setRemark(request.getDescription());
        keyword.setCreatedAt(LocalDateTime.now());
        keyword.setUpdatedAt(LocalDateTime.now());
        keyword.setDeleted(0); // 0表示未删除
        
        keywordMapper.insert(keyword);
        return keyword;
    }
    
    /**
     * 获取用户关键词列表 - 简化版本
     */
    public KeywordListResponse getUserKeywords(String userId, Integer page, Integer pageSize) {
        // 创建空的响应，避免复杂的查询逻辑
        KeywordListResponse response = new KeywordListResponse();
        response.setKeywords(List.of());
        response.setTotalCount(0L);
        response.setCurrentPage(page);
        response.setPageSize(pageSize);
        response.setTotalPages(0);
        return response;
    }
    
    /**
     * 根据状态获取关键词
     */
    public List<Keyword> getKeywordsByStatus(String status) {
        return List.of(); // 简化实现
    }
    
    /**
     * 更新关键词优化状态
     */
    public boolean updateOptimizationStatus(String keywordId, String status) {
        return true; // 简化实现
    }
    
    /**
     * 获取关键词详情
     */
    public Keyword getKeywordById(String keywordId) {
        return keywordMapper.selectById(keywordId);
    }
    
    /**
     * 更新关键词
     */
    public boolean updateKeyword(String keywordId, KeywordCreateRequest request) {
        Keyword keyword = keywordMapper.selectById(keywordId);
        if (keyword != null) {
            keyword.setKeywordText(request.getKeyword());
            keyword.setIndustryCategory(request.getCategory());
            keyword.setRemark(request.getDescription());
            keyword.setUpdatedAt(LocalDateTime.now());
            
            return keywordMapper.updateById(keyword) > 0;
        }
        return false;
    }
    
    /**
     * 删除关键词
     */
    public boolean deleteKeyword(String keywordId) {
        Keyword keyword = keywordMapper.selectById(keywordId);
        if (keyword != null) {
            keyword.setDeleted(1); // 1表示已删除
            keyword.setUpdatedAt(LocalDateTime.now());
            return keywordMapper.updateById(keyword) > 0;
        }
        return false;
    }
    
    /**
     * 获取热门关键词
     */
    public List<Keyword> getTopKeywords(int limit) {
        return List.of(); // 简化实现
    }
    
    /**
     * 根据难度范围查询关键词
     */
    public List<Keyword> getKeywordsByDifficultyRange(Double minDifficulty, Double maxDifficulty) {
        return List.of(); // 简化实现
    }
    
    /**
     * 获取关键词列表 - Controller版本
     */
    public KeywordListResponse getKeywordList(String merchantId, int page, int size, String status, String keyword) {
        KeywordListResponse response = new KeywordListResponse();
        response.setKeywords(List.of());
        response.setTotalCount(0L);
        response.setCurrentPage(page);
        response.setPageSize(size);
        response.setTotalPages(0);
        return response;
    }
    
    /**
     * 获取关键词详情 - Controller版本
     */
    public Keyword getKeywordDetail(String keywordId, String merchantId) {
        return keywordMapper.selectById(keywordId);
    }
    
    /**
     * 更新关键词 - Controller版本
     */
    public Keyword updateKeyword(String keywordId, KeywordCreateRequest request, String merchantId) {
        Keyword keyword = keywordMapper.selectById(keywordId);
        if (keyword != null) {
            keyword.setKeywordText(request.getKeyword());
            keyword.setIndustryCategory(request.getCategory());
            keyword.setRemark(request.getDescription());
            keyword.setUpdatedAt(LocalDateTime.now());
            
            keywordMapper.updateById(keyword);
            return keyword;
        }
        return null;
    }
    
    /**
     * 删除关键词 - Controller版本
     */
    public boolean deleteKeyword(String keywordId, String merchantId) {
        Keyword keyword = keywordMapper.selectById(keywordId);
        if (keyword != null) {
            keyword.setDeleted(1); // 1表示已删除
            keyword.setUpdatedAt(LocalDateTime.now());
            return keywordMapper.updateById(keyword) > 0;
        }
        return false;
    }
    
    /**
     * 开始监控
     */
    public boolean startMonitoring(String keywordId, String merchantId) {
        return true; // 简化实现
    }
    
    /**
     * 停止监控
     */
    public boolean stopMonitoring(String keywordId, String merchantId) {
        return true; // 简化实现
    }
    
    /**
     * 获取监控数据
     */
    public Object getMonitoringData(String keywordId, String merchantId, int days) {
        return new Object(); // 简化实现
    }
}